anode corrosion
11Galvanic anode — A galvanic anode, a type of sacrificial anode, is one of the main components of a galvanic cathodic protection system used to protect metals from corrosion, by the use of a metal electrode which is itself consumed instead in an anodic oxidation… …
12Intergranular corrosion — (IGC), also termed intergranular attack (IGA), is a form of corrosion where the boundaries of crystallites of the material are more susceptible to corrosion than their insides. ( Cf. transgranular corrosion.)This situation can happen in otherwise …
13Red plague (corrosion) — Red plague is an accelerated corrosion of copper when plated with silver. After storage or use in high humidity environment, cuprous oxide forms on the surface of the parts. The corrosion is identifiable by presence of patches of brown red powder …
14Sacrificial Anode — A metal rod placed in a water heater tank to protect the tank from corrosion. Anodes of aluminum, magnesium, or zinc are the more frequently metals. The anode creates a galvanic cell in which magnesium or zinc will be corroded more quickly than …
15Electroplating — is the process of using electrical current to reduce cations of a desired material from a solution and coat a conductive object with a thin layer of the material, such as a metal. Electroplating is primarily used for depositing a layer of… …
16Cobalt extraction techniques — Cobalt ore Several methods exist for the separation of cobalt from copper and nickel. They depend on the concentration of cobalt and the exact composition of the used ore. Contents …
17Corrosif — Corrosion La corrosion désigne l altération d un matériau par réaction chimique avec un oxydant (le dioxygène et le cation H+ en majorité). Il faut en exclure les effets purement mécaniques (cela ne concerne pas, par exemple, la rupture sous l… …
18Corrosive — Corrosion La corrosion désigne l altération d un matériau par réaction chimique avec un oxydant (le dioxygène et le cation H+ en majorité). Il faut en exclure les effets purement mécaniques (cela ne concerne pas, par exemple, la rupture sous l… …
19Electrochemistry — is a branch of chemistry that studies chemical reactions which take place in a solution at the interface of an electron conductor (a metal or a semiconductor) and an ionic conductor (the electrolyte), and which involve electron transfer between… …
20Cathodic protection — (CP) is a technique to control the corrosion of a metal surface by making it work as a cathode of an electrochemical cell. This is achieved by placing in contact with the metal to be protected another more easily corroded metal to act as the… …
